Sony TC-WR521 - Page 20

TC-WR521/WR590
5-4. SCHEMATIC DIAGRAM (AUDIO SECTION)
1 2 3 4 5 6 7 8 9 10 11 12
WRSSO
A
WR521
DECK-B
f AUDIO BO
M2
REEL MOTOR
{ AUDIO BOARD)
TAPE SPEE® (HIGH)
M1
CAPSTAN MOTOR
C SWITCHING
1031 (172) CST te
LM833H
H
1C31 PB AMP RS) '
PB AMP C18 b.2 220 L-CH |
CNP32 Pa ee
SS RR 1 !
is HRPE101 |
[1
a
'
co ® | | PE LEVEL - CNU31 REC/PB |
D
7.3
HEAD
|
HP101
o
147.5
v
Dp
a
|
LH
PB
'
peach nee 0 GND (SIGNAL) R-CH }
R22
ROA?
Dn
—S>—
|
R
CH
(PB)
1
a2 | 100 5.6k o | -7.5v TO !
C21
4
20K=
a
Ry21
'
r-cH—>
&
[|
11
>
380p
)
a
oy
Ve
o|
REEL+
SYSTEM
CONTROL
;
yo} $0 C28 ena 130k fev o | REEL- '
E
|
10
>
Ste
t—o
|}
+5V
'
a ov 3 0.3 C23 HIGH
l
1C31
2/2)
|
6.2
fy
24
boat
-7V
(MOTOR)
|
(Ma33H : henna '
PB
AMP
‘
| '
F
wR521 DECK-A |
wrsso
[
SW-A
BOARD
]
2
WR521
tee
2
7 7 . . SYSTEM CONTROL WR590 DECK-B 5 !
we $81 STOPSW {SW-B BOARD J
ote: a ee oe
G $82 Cr02
*
All
capacitors
are
in
uF
unless
otherwise
noted.
pF:
uu
F
5B6
sai
sTopsw
[~
:
eg
er
50WV or less are not indicated except for electrolytics HALF
and
tantalums.
$82
Cr02
* All resistors are in Q and YW or less unless otherwise R8S 180
specified.
g}0
saz
METAL
o
|
*
%
:
indicates
tolerance.
H
CNP81
er
.
YoY
R81
560
+
A
:
internal
component.
|
ses
RECA
Voy]
81
56
:
‘
1c81
'
=
.
:
j
i
fol
ie)
CT]
:
adjustment
for
repair.
TCB1)
NuLs145k-B
gag
REC
B
ener
fs
* Voltage and waveforms are dc with respect to ground ROTATION BET Sari
under no-signal. . seq HALF '
* no mark : STOP ;
> : FWD 1 RS 180
qs
REV
'
seg!
Ree
'
Ei
@
REC
|
|
+ Voltages are taken with a VOM (input impedance 10M 2). 1c81
1 '
Voltage
variations
may
be
noted
due
to
normal
produc-
LC8
14
nvi5165k-B
.
ROTATION
BET
tion tolerances.
*
Signal
path.
J
-
re,
XD : PB (WECK A)
(>: REC (DECK 8)
—
98
—
=
29
=